Repulsor Energy

The Repulsor Energy is a material. The game describes the material as "An interesting cluster of energy that acts almost like a gel. Distorts disproportionately to any force."

Robes
Description: Increases the power of your next spell after taking damage.

Taking damage applies the Spell Boost status effect on the player, which increases the spellpower and damage of the next spell cast. The status effect only lasts for 10 seconds regardless of material count and grade.

Spells
Description: Knocks you backwards when cast due to increased spellpower.

Casting a spell with this material will inflict a special type of knockback onto the player, unlike a robe with the Trick Bullet material (though their effects do synergize with each other). Colliding with enemies while being knocked back this way will inflict damage to enemies equal to the player's velocity. The maximum amount of damage that can be dealt this way is 100.

Self-Knockback Force is in magicmeters per second, though the unit is not shown in-game.